Heat oil in a large skillet. Add onions and peppers. Cook until tender soft. Add chicken and pepper jelly and heat.

Meanwhile, heat a large cast iron griddle ( or another large skillet) over medium high heat. Brush with vegetable oil or spray with cooking spray. Lay down 1 tortilla and spoon 1/4- 1/3 cup of chicken mixture over it, Sprinkle 1/4 or so cup of cheese over the chicken mixture. Top with tortilla. Put 2 quesadillas on the griddle at a time. Loosely cover with foil. Cook until tortilla is browned. Flip and cook the other side until browned. Set aside and keep warm. I usually put it in a low (190 degrees) heated oven.